Maechidius weigeli, Telnov, 2020
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publication ID |
https://doi.org/ 10.5852/ejt.2020.721.1127 |
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publication LSID |
lsid:zoobank.org:pub:89E62EF8-2E45-4C59-94B7-6A5603E8939B |
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DOI |
https://doi.org/10.5281/zenodo.4344339 |
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persistent identifier |
https://treatment.plazi.org/id/9C17E972-B606-419C-AC72-6713B01D5546 |
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taxon LSID |
lsid:zoobank.org:act:9C17E972-B606-419C-AC72-6713B01D5546 |
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treatment provided by |
Valdenar |
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scientific name |
Maechidius weigeli |
| status |
sp. nov. |
Maechidius weigeli View in CoL sp. nov.
urn:lsid:zoobank.org:act:9C17E972-B606-419C-AC72-6713B01D5546
Figs 6 View Figs 2–7 , 94 View Figs 94–96 , 191–192 View Figs 181–192 , 263 View Figs 259–265 , 354 View Figs 349–358 , 426 View Figs 424–435 , 531–532, 739–741
Differential diagnosis
Differs from all congeners in the shape of the aedeagus and in the setation and structure of the pygidium.
Etymology
Patronymic. This species is named after Andreas Weigel (Wernburg, Germany), a famous expert on oldworld Cerambycidae and my good friend.
Type material
Holotype
INDONESIA • ♂; “ INDONESIA or. Irian Jaya 170km S Nabire Epomani 1150m, 06.I.1996 leg. A. Weigel ”; NME.
Paratypes (5 specimens)
INDONESIA • 1 ♂, 1 ♀; same label as for holotype; NME • 1 ♂; same label as for holotype; DTC • 2 ♂♂; “ IRIAN JAYA:J.- Waropen Pr. Wapoga Riv., 100m, Kwadewa, loading [sic ♂ logging] road, km 80 1-2.III. 1999, leg. A.RIEDEL”; SMNS .
Description
MEASUREMENTS. Male holotype, total body length 6.60 mm. Head 1.40 mm long, across eyes 1.60 mm wide. Pronotum 1.40 mm long, maximum width 2.10 mm. Elytral length 3.80 mm, maximum combined width 2.90 mm. Selected paratypes 5.80–6.40 mm long.
With general features of the pauxillus group. Dorsal surface opaque except on anterior margin of labroclypeus. Frons with paired hump. Male labroclypeus ( Fig. 191 View Figs 181–192 ) broadly rather deeply emarginate on anterior margin. Anterolateral angles of labroclypeus acute in male, strongly protruding, raised up at angle of nearly 90° to frons in lateral view ( Fig. 6 View Figs 2–7 ). Female labroclypeus with comparatively less acute anterolateral angles ( Fig. 192 View Figs 181–192 ). Lateral margins of labroclypeus slightly sinuous in dorsal, but strongly in lateral view. Head dorsum except on anterior margin of labroclypeus covered with microscopic velvety pubescence. Head punctures elongate, very deep, moderately dense. Head with moderately long, appressed scale-like setae. Setae becoming distinctly longer, suberect to erect and stronger clavate on humps of frons ( Figs 191–192 View Figs 181–192 ). Antenna 9-segmented, club 3-lamellate. Pronotum transverse, slightly sinuous on anterior margin with protruding anterolateral angles. Basal margin broadly rounded, posterolateral angles right-angled. Lateral margin of pronotum in dorsal view almost straight to gradually widened towards middle, moderately strongly emarginate postmedially, crenulate all along ( Fig. 263 View Figs 259–265 ). Lateral margin of pronotum sinuous in lateral view. Two flat humps on anterior margin opposite to those on frons ( Fig. 263 View Figs 259–265 ). Pronotal punctures ovoid, variably large, very deep, dense. Pronotal dorsum and hypomeron covered with microscopic velvety pubescence. Pronotal setae minute, rise from anterior margin of each puncture, generally not surpassing midlength of corresponding puncture. Few slightly longer scale-like setae scattered over pronotal disc, not surpassing length of corresponding punctures. Posterolateral angles of pronotum with moderately long scale-like clavate setae. Setae on pronotal humps also long, erect, scale-like and clavate. Small group of large appressed setae on either side of pronotum along postmedian emargination. Hypomeron flange-like produced, slightly emarginate and very long setose opposite to compound eye. Antennal pocket deep. Scutellar shield rounded apically. Elytron with glabrous elevated broadly interrupted track of sutural carina. Elytral punctures irregularly shaped, deep and dense ( Fig. 354 View Figs 349–358 ) and generally smaller than those on pronotum. Setae minute, arising from anterior margin of each puncture, not surpassing midlength of corresponding punctures. Much longer suberect scale-like clavate setae arranged in irregular longitudinal rows across elytra. Male pygidium flattened dorsally, slightly impressed in anterior third, dense and deep moderately large punctate (Fig. 531). Intervening spaces opaque, microreticulate, covered with microscopical velvety pubescence. Setae of pygidium minute, with paired group of scale-like clavate suberect pubescence in median part. Female pygidium with setae more regular in size and shape (Fig. 532). Protibia with inconspicuous longitudinal dorsal carina, with two inconspicuous distal teeth ( Fig. 426 View Figs 424–435 ). Male protibial terminal spur strongly curved, female one shorter and nearly straight. Male lower meso- and metatibial terminal spurs curved, rather short. Male aedeagus as in Figs 739–741 View Figs 739–750 .
Sexual dimorphism
Female lamellae of antennal club shorter; anterior margin of labroclypeus nearly subtruncate, shallower ( Fig. 192 View Figs 181–192 ); tibial terminal spurs not curved.
Ecology
Occurs in lower montane rainforests at about 1150 m altitude.
Distribution
Hitherto known from the westernmost part of the Central Cordillera (Nabire surroundings; Wapoga River valley) of New Guinea.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SubFamily |
Melolonthinae |
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Tribe |
Maechidiini |
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